Overview

overview

10

Static

static

3

crt.exe

windows7-x64

10

crt.exe

windows10-2004-x64

10

crt.exe

windows11-21h2-x64

10

Sharing

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General

  • Target
    crt.exe
  • Size 3.8MB
  • Sample240803-xjsvbawgnh
  • SHA256 0384c6409bb5afac939fef6bb65bb6e5ca9d61eee4f20652e754cf0410cb7ebb
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
socks5systemzbotnetdiscovery

Malware Config

Targets

    • Target
      crt.exe
    • Size 3.8MB
    • SHA256 0384c6409bb5afac939fef6bb65bb6e5ca9d61eee4f20652e754cf0410cb7ebb
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    socks5systemzbotnetdiscovery

    • Detect Socks5Systemz Payload

    • Socks5Systemz

      Socks5Systemz is a botnet written in C++.

      botnetsocks5systemz

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

      discovery
    behavioral1behavioral2behavioral3

MITRE ATT&CK Enterprise v15

Tasks